diff --git a/mapshader/flask_app.py b/mapshader/flask_app.py
index 1f26b75..cd7233f 100644
--- a/mapshader/flask_app.py
+++ b/mapshader/flask_app.py
@@ -17,6 +17,7 @@
     from flask import request
 except ImportError:
     raise ImportError('You must install flask `pip install flask` to use this module')
+from flask_cors import CORS
 
 from mapshader import hello
 from mapshader.core import render_map
@@ -202,6 +203,8 @@ def index_page(services):
 
 def configure_app(app, user_source_filepath=None, contains=None):
 
+    CORS(app)
+
     view_func_creators = {
         'tile': flask_to_tile,
         'image': flask_to_image,
diff --git a/setup.py b/setup.py
index fde1b7d..7737226 100644
--- a/setup.py
+++ b/setup.py
@@ -22,6 +22,7 @@
                         'matplotlib',
                         'descartes',
                         'flask',
+                        'flask-cors>=3.0.10',
                         'rasterio',
                         'jupyter',
                         'pyarrow'],